The first example is to show Servlet Welcome using Servlet Annotation WebServlet.

For this we have created an index.html page on index.html we have created a link. On clicking on link it will call welcome servlet.

Our project directory structure is as per below

1_expo

index.jsp

&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt;

1	<%@page contentType="text/html" pageEncoding="UTF-8"%>

Show welcome servlet

Welcome.java

package ebhor.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "Welcome", urlPatterns = {"/welcome"})
public class Welcome extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            out.println("");
            out.println("");
            out.println("");
            out.println("");
            out.println("");
            out.println("");
            out.println("

package ebhor.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "Welcome", urlPatterns = {"/welcome"})

public class Welcome extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html;charset=UTF-8");

PrintWriter out = response.getWriter();

try {

out.println("");

out.println("

Servlet Welcome

");
            out.println("");
            out.println("");
        } finally {
            out.close();
        }
    }

}

");

out.println("");

} finally {

out.close();

}

@WebServlet(name = “Welcome”, urlPatterns = {“/welcome”}) here urlPattern maps /welcome to Welcome.java.
<a href=”welcome”>Show welcome servlet</a> call to doGet() method of Welcome.java because anchor tag calls http get method so it is handled by servlets doGet() method.

Result

Servlet Annotation WebServlet Example

Show welcome servlet

Servlet Welcome

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